1 # Adds version control information to the variable VERS. For
2 # determining the Version Control System used (if any) it inspects the
3 # existence of certain subdirectories under CMAKE_CURRENT_SOURCE_DIR.
5 function(add_version_info_from_vcs VERS)
6 string(REPLACE "svn" "" result "${${VERS}}")
7 if( EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.svn" )
8 set(result "${result}svn")
9 # FindSubversion does not work with symlinks. See PR 8437
10 if( NOT IS_SYMLINK "${CMAKE_CURRENT_SOURCE_DIR}" )
11 find_package(Subversion)
13 if( Subversion_FOUND )
14 subversion_wc_info( ${CMAKE_CURRENT_SOURCE_DIR} Project )
15 if( Project_WC_REVISION )
16 set(SVN_REVISION ${Project_WC_REVISION} PARENT_SCOPE)
17 set(result "${result}-r${Project_WC_REVISION}")
20 elseif( EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.git )
21 set(result "${result}git")
23 if( EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.git/svn )
24 find_program(git_executable NAMES git git.exe git.cmd)
26 set(is_git_svn_rev_exact false)
27 execute_process(COMMAND ${git_executable} svn log --limit=1 --oneline
28 WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
30 RESULT_VARIABLE git_result
31 OUTPUT_VARIABLE git_output)
32 if( git_result EQUAL 0 )
33 string(REGEX MATCH r[0-9]+ git_svn_rev ${git_output})
34 string(LENGTH "${git_svn_rev}" rev_length)
35 math(EXPR rev_length "${rev_length}-1")
36 string(SUBSTRING "${git_svn_rev}" 1 ${rev_length} git_svn_rev_number)
37 set(SVN_REVISION ${git_svn_rev_number} PARENT_SCOPE)
38 set(git_svn_rev "-svn-${git_svn_rev}")
40 # Determine if the HEAD points directly at a subversion revision.
41 execute_process(COMMAND ${git_executable} svn find-rev HEAD
42 WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
44 RESULT_VARIABLE git_result
45 OUTPUT_VARIABLE git_output)
46 if( git_result EQUAL 0 )
47 string(STRIP "${git_output}" git_head_svn_rev_number)
48 if( git_head_svn_rev_number EQUAL git_svn_rev_number )
49 set(is_git_svn_rev_exact true)
55 execute_process(COMMAND
56 ${git_executable} rev-parse --short HEAD
57 WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
59 RESULT_VARIABLE git_result
60 OUTPUT_VARIABLE git_output)
61 if( git_result EQUAL 0 AND NOT is_git_svn_rev_exact )
62 string(STRIP "${git_output}" git_ref_id)
63 set(GIT_COMMIT ${git_ref_id} PARENT_SCOPE)
64 set(result "${result}${git_svn_rev}-${git_ref_id}")
66 set(result "${result}${git_svn_rev}")
71 set(${VERS} ${result} PARENT_SCOPE)
72 endfunction(add_version_info_from_vcs)